SW, let me explain the concept of "Basic fundamental human rights" to you, because, frankly, you are perversing it.
What this means is that a person has a right to do what they choose provided that it does not interfere with the rights another person has. The rights are equal between all people. It's reciporcal.
Therefore, I have the right to live. Also, it's my right to dislike Person X, and tell him so. It's also my right to say publicly that I dislike Person X. However, if I kill Person X, then I'm taking away that Person X right to live, as well as any other rights he had.
There IS a clear, definite line.